Earlier reports about the purchase, published at the end of last month by AllThingsD, had pegged the price at more than $800 million (Peter Kafka explains where the discrepancy likely comes from in a new post today).

Update: Kafka also points out the Salesforce.com SEC filing that surfaced this morning lists the total consideration for Buddy Media at $745 million.

Founded in 2007, Buddy Media helps companies like HP, Mattel and Ford and 1,000 other companies maintain a presence on social networks like Facebook, Twitter, LinkedIn and Google+, as well as sites like YouTube and Google (search).

The company says it will acquire Buddy Media for approximately $467 million in cash and $184 million in common stock, and $38 million in vested Salesforce.com options and restricted stock units.

Salesforce.com says it expects to close the transaction in the fourth quarter of 2012 (or the end of its fiscal second quarter), and expects to increase revenues by roughly $20 million to $25 million in fiscal year 2013 as a result of the deal.